Hi Marty hiser, I want to help you with your question, but I need more information from you. Can you please add details in the comment box? model numberHi Marty hiser, I want to help you with your question, but I need more information from you. Can you please add details in the comment box? model number

3 Suggested Answers

Hi,
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For what it's worth, you can download the official
Sanyo repair manual for this TV (DP42746) at http://www.eserviceinfo.com/downloadsm/43343/sanyo_dp42746.html.
I uploaded it here when I had some issues with this TV last year.
The solution almost always seems to be to replace the Power
Board and the Upper and Lower Y Buffers. The parts and costs (from Sanyo in
July 2009) are listed below (NOTE: Sanyo will not ship these parts to anyone but
a repair shop):
1. V4 Y-Main (Y-Sustain) Circuit Board (Part #
LJ92-01200A, Alt Part # LJ41-02759A) - USD $139.00 2. Upper Y-Buffer
Circuit Board (Part # LJ92-01202A, Alt Part # LJ41-02760) - USD $64.00 3.
Lower Y-Buffer Circuit Board (Part # LJ92-01203A, Alt Part # LJ41-02761A) - USD
$64.00
Sanyo charges USD $10.50 for shipping, which brings the total cost for
parts to USD $277.50. From my research, a shop would probably charge between
USD $500 and $700 to do this repair.
FYI - there is a class action lawsuit pending against Sanyo for this
issue. The V4 Y-Main (Y-Sustain) Circuit Boards fail VERY frequently in this TV
due to overheating. Hope this helps.

These lines are often caused by interference. Try putting a filter on the input power plug. Make sure there is nothing near by that can be causing interference, like another monitor or computer, microwave oven, fluorescent light, etc. Make sure all the antenna leads are tight and the converter box well grounded. Is this dish or cable?

Tell us some more! Your answer needs to include more details to help people.You can't post answers that contain an email address.Please enter a valid email address.The email address entered is already associated to an account.Login to postPlease use English characters only.

most likely a defective Z-SUSTAIN board failure if the video looks somewhat correct and the tv is just dark. the Z-SUSTAIN board basically powers the plasma panel and if it fails a certain way it will cause this problem with the dark video. if you can get the tv taken apart and look for part numbers off of the board on the far right looking from that back then you may be able to find the part on the internet somewhere otherwise Contact Sanyo Manufacturing Corp 1-800-877-5032. good luck